Tube-cleaner for marine boilers.



1. HIKIDA.

TUBE CLEANER FOR MARINE BOILERS.

APPLICATION FILED SEPT.I,1916.

Patented June 5, 1917.

PATENT GFFICE.

JINKICHI nrnrna, on reverra-KEN, JAPAN.

TUBE-emanan FOR Masiva volwas- Sewage@ 0f Letters. Patent Patented June.5; v19.13-

npplication filed September 7',` 1916. Serial No. 118,795.

To all 'whom t may concern.'

`Be it known kthat I, JINKIGHI l-IIIIUDA, a subject of the'Emperor ofJapan, residing at Toyamalen, Japan, Vhave made avcertain `new anduseful Invention 'in Tube-Cleaners for Marine Boilers, of which thefollowing is a s iecification. j hisinvent'ion relates tol tubecleanersfor marine boilers;` '1

rfhe object of the invention is to provide a device which is simple instructure and eincient in operation for cleaning the interior surface oftubes, for example marineboiler tubes.

A further object of the invention is to provide a device ofthe classdescribed which shall be easy to insert into a tube and which can bedrawn outof the same without difliculty.

A further object of the invention is to provide a device of the classdescribed which may be inserted over the tube end of the combustionchamber so that the soot will be swept out toward the smoke box insteadof the combustion chamber.

Further objects of the invention will appear more fully hereinafter. Y

The invention consists substantially in the construction, combination,location and relative arrangement of parts all as will be more fullyhereinafter set forth as shown by the accompanying drawing and finallypointed out in the appended claims.

Referring to the drawings.

Figure 1 is a view in side elevation of a device constructed inaccordance with this invention.

Fig. 2 is a plan view of the same positioned in a boiler tube.

Fig. 3 is a view in side elevation of the same.

Fig. 4 is a view in end elevation of the same.

Fig. 5 is a view in cross section of the same on the line 5, 5,Fig. 3.

The same part is designated by the same reference numerals wherever itoccurs `throughout the several views.

The tube cleaning device, in accordance with this invention is comprisedof an upper memberl terminating in a screwed portion 2 at one end and anadjustable lower mem ber 3.

The lower member 3 is adjustably attached to the upper member l byupwardly projecting portions 4 formed at or near each end of the member3 seating in vertical slots 5 formed in the upperv member 1 and securedtherein by meansof suitable pins 6 to allow a certain amount ofmovement, between the respective members land 3.

Springs 7 coiled around the projections 4 andbetween the two members land 3 tend to keep the said two members apart, but upon insertion in thetube the springs are compressed by contact 'of the Imembers 1 and 3 withthe inner surface ofthe tube to permit entry therein and to keep themembersl and 3 in close contact with the inside of the tube 8.

The edge of a semicircular plate 9 carried by the upper member 1, servesas a cleaner or sclaper and acts upon the inner surface of the tube 8.The semicircular plate 9 may be removed and is held inposition by awedge piece 10 driven in between the upper member and the fiat surfaceof the plate 9. A bolt and nut 11 may be used if desired to tighten upthe wedge.

A cleaner or scraper is formed upon the lower member 3 as at 12 and ispreferably integral therewith.

Secured to the'upper member 1 at 13 is a hinged flap 14 which extendstransversely across the device. The ,hinged flap 14 is slottedvertically from its lower or outer edge as shown at l5, to allow it topass over the lower member 3 as shown best in Fig. l. 1n its normalposition the flap 14 hangs vertically and the lower cleaner or scraper12 forms a stop to prevent it from swinging past the same when thecleaner is withdrawn. As the cleaner is passed into the tube this hingedflap 14 swings on its hinge as shown in dotted lines in Fig. 3 andpasses over the scale or other dirt dislodged by the cleaners, but onthe backward or withdrawing stroke of the cleaning device it is forcedto its vertical position and serves to rake or draw out all the soot andscale in the tube.

Two guide arms 16 and 17 are arranged one at each side of the device andare secured at one end to the sides of the rear part of the upper member1' at 18. Their forward ends are free and are curved inwardly. A t theirwidest expanse these arms make contact with the inner surface of thetube adjusting themselves to diameter and any inequalities of the borethereof.

A handle as shown at 19 or any other convenient means for operating thecleaning device may be employed.

Having now described the construction and operation of my device, what Iclaim as new and useful, and of my own invention, and desire to secureby Letters Patent, is,-

l. In a tube cleaner device, the combination with an upper member and aremovable cleaner therefor, means for adjustably attaching said cleanerto said upper member of an automatically adjustable lower member, ascraper therefor means for adjustably attaching the lower member to thesaid upper member, and a swinging flap hinged to and dependent from thesaid upper member.

2; The combination with a fixed member, a scraping. device carriedthereby, a movable member loosely secured to said Xed member meansinterposed between said members to normally separate the same, and ascraping device carried by said movable member, a hinged Hap carried bysaid xed member, and adapted to extend over said movable member, andmeans for limiting the movement of said flap.

3. The combination with a fixed member, a scraping device carriedthereby, a movable member loosely secured to said iiXed member meansinterposed between said members to normally separate the same, and ascraping device carried by said movable member, a hinged flap carried bysaid lixed member, and adapted to extend over said movable member, andmeans carried by said movable Eiember for limiting the movementof saidIn testimony whereof I have hereunto set my hand this 5th day ofSeptember, A. D.

J INKICI-II HIKIDA.

Copies of lthis patent may be obtained for cents each, by addressing theCommissioner of Patents,

/ashngtom D. C.

